260256667 has 8 divisors (see below), whose sum is σ = 284164272. Its totient is φ = 236390400.

The previous prime is 260256653. The next prime is 260256671. The reversal of 260256667 is 766652062.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 260256667 - 2¹⁹ = 259732379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260256637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3667 + ... + 23107.

It is an arithmetic number, because the mean of its divisors is an integer number (35520534).

Almost surely, 2^260256667 is an apocalyptic number.

260256667 is a deficient number, since it is larger than the sum of its proper divisors (23907605).

260256667 is a wasteful number, since it uses less digits than its factorization.

260256667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20669.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 260256667 is about 16132.4724391520. The cubic root of 260256667 is about 638.4603836638.

The spelling of 260256667 in words is "two hundred sixty million, two hundred fifty-six thousand, six hundred sixty-seven".